<template>
 <div class="tab-control">
    <div class="tab-control-item"
         :class="{active:index=== currentIndex}"
         v-for="(item,index) of titles" 
         @click="itemClick(index)"
         :key="index"
         >
         <span>{{item}}</span>
    </div>
 </div>
</template>

<script>
 export default {
   name:'TabControl',
   props:{
       titles:Array
   },
   data(){
       return{
           currentIndex: 0
       }
   },
   methods:{
       itemClick(index){
           //点击改变currentIndex 变成当前点击对象的index值
           this.currentIndex = index
           this.$emit('tabClick',index)
       }
   }
 }
</script>

 
<style scoped>
 .tab-control{
    display: flex;
    text-align: center;
    font-size: 16px;
    height: 40px;
    line-height: 40px;
    background-color: #fff;
 }
 .tab-control-item{
     flex:1;
 }
 .active{
     color :var(--color-high-text);
 }
 .tab-control-item span{
     padding:5px;
 }
 .active span{
    border-bottom : 3px solid var(--color-tint);
 }
</style>
